The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Mon, 14 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.88459}

epss

{'score': 0.8935}


Mon, 27 Jan 2025 23:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 10 Dec 2024 16:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2023-06-23'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Zyxel

Published:

Updated: 2025-10-21T19:45:40.748Z

Reserved: 2023-03-09T08:44:12.874Z

Link: CVE-2023-27992

cve-icon Vulnrichment

Updated: 2024-08-02T12:23:30.801Z

cve-icon NVD

Status : Modified

Published: 2023-06-19T12:15:09.433

Modified: 2025-10-21T20:19:24.747

Link: CVE-2023-27992

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.